Sulphuric ester of glycol ethers



- nitrobenzfne' {1125 known andonvenient manner. A

XR 19897t7l1 ratented reb. 14, 19315 IHEINRICH' ULRICH AND KARL SAUBWEIN, OF LUDWIGSI-IAFEN-ON-THE-RHINE, GER- MANY, ASSIGNORS TO I. G. FARBENINDUSTRIE AKTIENG-ESELLSCHAFT, 0F FRANK- FORT-ON-THE-MAIN, GERMANY SULPHURIG ESTER 0F GLYCOL ETHERS .No Drawing. Application filed May 2, 1931, Serial No. 534,690, and in Germany May 7, 1930.

' cially'wettingiagentsefonnnercerization, .,oan

b fo, tamed ,by f sulphonating hydrp-xyhbearv j ingiethersmiglycolswith aliphatic, i. e. open cha'n aliphatic or cycloaliphatic, monoor droxylbearing ethers containingj from l to Scarbonat ms. f-The reaction is carried out iathe s'nalp nner forsuch sulphonati'on, as foriexamplebyImixing the said ethers with 11$ sul honating agents, such as sulphuricmonohy rate, chlorsulphon'ic acid, 'oleum or sulphur trionide if desired ,While slightly Warming th s u e 0 0-, n a i competition hyitoo high temperati'tres and, if

i 29 desired, in the'presenceioffinert organic dil -v uents, as for example triehlorethylene, car'- b'ontet' achloride, chloroform,ethyl ether or isaidjethers may be prepared in any particularly suitable method is the. conversion of aliphatio' rno-nor or polyhydric alcohols with allryleneoxidestfsuch as ethylene, propylene, 1.2-, -23 or .LSQYbutylene oxides and thelike.

to The alcoholsetherified wit t glycolsWlY be chosen fromany aliphatic monohydric alcoholsQcoritaiiiing preferably up to tcarbo-n atoms,-.suchlas ethyl, n-propyl, iso-propyl, n butylor iso-lbutyl alcohols, or also from ,35 hexyl, 'ethyl-hexyhcetyl, lauryl or stearly alcohols, or fromialiphatic polhydric alcohols, such as .glycols or glycerols, or from oycloaliphatic alcohols, such as cyclohexanol or its homologues. a .40 The products prepared in the said manner and their water-soluble salts with alkalies, for example with sodium, potassium, ammonia or amines especially alkylol amines, such as mono-,dt or tri-ethanol amines have 45 an excellent wetting, cleansing, dispersing and washing power and are therefore suitable asadditio-ns to baths for a great variety of purposes in the textile industry, as for example for dyeing, bleaching, dressing and 50 washing. The acid esters and their salts of ethers containing from 4 to 8 carbon atoms are particularly valuable for increasing the wetting power of mercerizing liquors for which purpose the ester or their saltsare usually employed in quantities of from 0.5 to so 1 per cent of the liquors, the effect being in creased by adding difficultly water-soluble organic solvents, such as di-butyl ether, butanol or similar alcohols or ethers, They are also suitable for the preparation of emulsions, as 6.9, dispersing agents and the like for the lacquer, leather, paper and like industries.

The following examples'will further illustrate the nature of this invention but the invention isnot restrictedto these examples. 6a The parts are by weight.

Example 1 900 parts of ethylene glycol mono-ethyl m ether are mixed at from 5 to 15 C. with 1150 J parts of chlorsulphonic acid, hydrochloric acid formed being removed simultaneously or subsequently bypassing through an inert gas, scuqlf as air, corresponding to the formula 2 n w, U er tarbon dioxide. The resulting sulphuric ester may be employed as such or in the form of its water-soluble salts. The sulphuric ester is soluble, for example, in alkaline liquors, such as caustic soda solutions of from 32- to 40 Be. strength as are employed in mercerizing, and imparts a good wettingpower to the said liquors.

Ewmpla 2 I v 5 parts of glycerine mono-hydroXy-ethyl ether 10(- Room} u ."emswmwma tini.A. i "4..

1 i lo 2 1 f F] r 1,897,741

or 100 parts of di-ethylene glycol may be employed.

ether are incorporated at from 5 to 15 C.

with 1100 parts of chlorsulphonic acid, hydrochloricyacid formed being removed by passing through a current-of an inert gas, n such as air, nitrogen or carbon dioxide. The

acid sulphuric ester of the butyl other which corresponds to the formula CH CH- easily soluble "in alkaline liquors of a'hig'h I For thispurpose the sulphuric estermaybe employed as such or in the form of its watersoluble salts, as 'for example the salts with lk ime a se m n s 804.1parts of the mono-ethyl ether of diethylene glycol, (C H O-C H -.-.-O GH2%7CHOH) are slowly incorporated at from5 to 15F. .C. with 690 parts. of chlorsulphonic acid, the hydrochloric acid formed being removed either simultaneously or subsequently bypassing through a current of air. The sulphuricester of the glycol ether which corresponds to the formula G H lS I'endered neutral with the aid of aqueous caustic soda solution. 35

Instead of'the'said ether 910 parts of the ether from equimolecular proportions I of glycerol =mono-isopropyl ether may be employed,"the resulting sulphuric ester which presumably corresponds to the formula CH5) 2 GI-I-OCHCH OH) GH OSO H being equally useful as an addition to mercerizing liquors.

Emample 5 Example 6 230 parts of the hydroxy-ethyl ether obtainable from lauryl alcohol and ethylene oxide are slowly introduced into 150 parts of sulphuric acid monohydrate, the temperature being kept at about 30 C. Ice is added to the sulphonation product and the latter freed from remainders of free sulphuric acid by means of an aqueous concentrated common salt solution. The sodium salt WlllCll corresponds to the formula C H -O CH .OH OSO Na may be obtained by neutralizing with caustic soda solutlon While cooling.

Instead of monohydrate, other sulphonating agents, such as chlorsulphonic acid, oleum and the like may be employed. Similarly the sulphonation may be carried out in inert diluents, as for example in trichlorethylene or carbon tetrachloride. Similar products are obtained by employing ethers of glycols with cetyl alcohol, stearyl alcohol or ethylhexyl alcohol instead of the ether from lauryl alcohol and ethylene oxide, the method of preparation of the ethers being immaterial.

What We claim is: V s 1. The process for the production of assistants for the textile and related industries, which comprises acting with a sulphonating agent on an ether of a glycol with an aliphatic alcohol.

2. The process for the production of assistants for the textile and related industries, which comprises acting with a sulphonating agent on an ether of a glycol with an ali phatic alcohol which ether contains at least one free hydroxyl group and from A to 8 carbon atoms.

3. As new articles of manufacture and assistants for the textile and relatedindustries, sulphonation products of ethers of glycols with aliphatic alcohols.

4-. As new articles of manufacture and assistants for the textile and related industries, sulphonation products of ethers of glycols with aliphatic alcohols which ethers contain rom 4 to 8 carbon atoms.

5. As new articles of manufacture and assistants for the textileand related industries, sulphuric esters of ethers of glycols with aliphatic alcohols which ethers contain from f to 8 carbon atoms.

6. As new articles of manufacture and as sistants for the textile and related industries, sulphuric esters of ethers of glycols with aliphatic polyhydric alcohols which ethers contain from 4 to 8 carbon atoms.

7. As new articles of manufacture and assistants for the textile and related industries, sulphuric esters of ethers of glycols with aliphatic monohydric alcohols which ethers contain from 4.- to 8 carbon atoms.

8. As new articles of manufacture and assistants for the textile and related industries, sulphuric esters of ethers of ethylene glycol with aliphatic monohydric alcohol containing from 3 to 4 carbon atoms.

9. As a new article of manufacture and assistant for the textile and related industries, the sulphuric ester of ethylene glycol monobutyl ether. 7

10. As new articles of manufacture and assista-nts for the textile and related industries, water-soluble neutralized sulphuric esters of ethers of glycols with aliphatic alcohols which ethers contain from 4: to 8 carbon 'atoms.

In testimony whereof we have hereunto set our hands.

HEINRICH ULRICH. KARL SAURWEIN. 

